Back to WWII for Call of Duty 5?

Job opening sparks speculation...

Speculation that Call of Duty will return to WWII in CoD 5 is circulating the internet on the count of a job advertisement.

Treyarch, which is behind a number of games in the first-person shooter series, is advertising for a Call of Duty level designer and this particular part of the job description has leapt off the web page:

"Working experience with First-Person Shooter or Third-Person Shooter genres (console or PC). And if you're a fan of World War II shooters, then even better!"

So is Call of Duty returning to WWII after its move to modern day inCall of Duty 4? And does this also mean Treyarch will develop the fifth game in the series? We'll simply have to wait and see...